Location: N-4 and US-75, Richardson Cty Reassurance shield at the beginning of Nebraska 4. N-4 is one of Nebraska’s oldest and longest state highways Location: N-4 and Airport Dr, Richardson Cty Junction Nebraska 105 coming up as we clip the northern edge of Humboldt. Nebraska 105 will join N-4 for a bit, the first of … Continue reading Nebraska Highway 4, US-75 to NE-105